Electronically operated 'Do not disturb' sign

摘要

An electrically operated illuminated sign for hotel bedrooms comprises a 'Do not disturb' and a 'Service room' sign that is placed in the corridor outside the bedroom and a switch that is placed inside the bedroom to operate the sign. The sign is in the form of a light box which when switched on lights up the wording 'Do not disturb' in red or lights of the wording 'Service room in green.